Baumuller b maXX BM1000, Manual

Page: 146 / 176

Fuse protection
Manual b maXX
®
BM1000
Document No. 5.07003.04 Baumüller Nürnberg GmbH
146
of 174
D.5
D.5 Fuse protection
We differ between the protection of the supply cables and the protection of the device. In order
to fulfill the CE specifications - here especially EN60204-1 - you have to protect the supply ca-
bles.
Protect the device in UL-certified installations with suitable semiconductor- or total range fuses.
Cable pro-
tection Place in safety fuses of the operation class gL DIN VDE 0636-201 / IEC 60269-2-1 / HD 630.2.1
54 or cable protection switches with the triggering characteristic K referring to DIN VDE 0636-
201 / IEC 60204-1 60269-2-1 / HD 630.2.1 54, to protect the cables. These fuses protect against
overloading and from consequential damages from faults e. g. by fire. You cannot prevent, that
the device is extensively destroyed, if a short circuit or an ground fault occurs in the DC link.
Execute the protection according to EN 60204-1 (’Electrical equipment of machines’). Dimen-
sion the cable protection fuses, dependent on the used cross section according to the, at the
time, valid, national standards and local regulations.
Device pro-
tection Place in semiconductor fuses with the triggering characteristic aR DIN VDE 0636-201 / IEC
60269-2-1 HD 630.2.1 54. Switch these in series to the cable protection fuses. These protect
the input-sided rectifier-triggering, in case of a short circuit, against completely destruction, so
that a repair of the device is possible.
Dimension the suitable device protection fuses, dependent on the peak current and the required
limit load integral i
2
t
OFF
.
See
Z
B.4 Fuses for device-protection
–
on page 132.
Cable pro-
t de-
vice
protection You have two possibilities to protect the cable and the device:
m
connect fuses and semiconductors in series
m
use whole range fuses with trigger characteristic gR (DIN VDE 0636-201/IEC 60269-2-1/HD
630.2.154)
Dimension the suitable cable and device protection fuses dependent on the used cross section
of the used mains line, from the peak current and the demanded limit load integral i
2
t
OFF
.
Deviant to the fuses these devices and supply systems also may also assure be UL-listed „Cir-
cuit breaker“ (DIVQ).
Permitted are only „Circuit breaker“ without tripping delay. Circuit breakers with a thermal trip-
ping characteristic are not checked and therewith not approved.In case of an error it must be
considered, that the device is not protected against destruction, but only is protected against fire
danger.
Dimension the suitable „Circuit breaker“ dependent of the cross section of the inserted supply
system, as well as from the nominal- and peak current of the converter.
NOTE
In UL-certificated installations you must place the UL-listed fuses or „Circuit breaker“.